Mouthpiece



FIG. 1 is a top, front, and right side perspective view of a first embodiment of a mouthpiece, according to the present invention;

FIG. 2 is a bottom, front, and right side perspective view thereof;

FIG. 3 is a top, rear, and right side perspective view thereof;

FIG. 4 is a bottom, rear, and right side perspective view thereof;

FIG. 5 is a right side view thereof, the left side view being a mirror image thereof

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a front view thereof;

FIG. 9 is a rear view thereof;

FIG. 10 is a top, front, and right side perspective view of a second embodiment of a mouthpiece, according to the present invention;

FIG. 11 is a bottom, front, and right side perspective view thereof;

FIG. 12 is a top, rear, and right side perspective view thereof;

FIG. 13 is a bottom, rear, and right side perspective view thereof;

FIG. 14 is a right side view thereof, the left side view being a mirror image thereof;

FIG. 15 is a top view thereof;

FIG. 16 is a bottom view thereof;

FIG. 17 is a front view thereof; and,

FIG. 18 is a rear view thereof.

The broken lines shown in FIGS. 10-16 illustrate an optional parting line and form no part of the design. 

CLAIM The ornamental design for a mouthpiece, as shown and described. 